关键词: 异形复合材料靶板, 数值模拟, 弯曲弧度, 抗侵彻性能

Abstract: A kind of special-shaped composite target plate composed of SiC ceramic and UHMWPE plate is presented. Finite element software ANSYS/LS-DYNA is used to conduct numerical simulation to explore the anti-penetration performance of the target plate under the 53 type 7.62 mm armor-piercing firebomb, and the numerical simulation was verified experimentally. Furthermore, the shape and the bending radian of the target plate on the penetration resistance are further studied. The results show that the anti-penetration performance of the outer convex spherical shell target is the best, and that of the concave spherical shell is the worst. Convex curved target plate is better than concave curved target plate. The bending of the target plate increases the peak load of the ceramic panel. With the increase of the bending radian of the target plate, the residual velocity of the bullet decreases at first and then increases, and the energy absorption of the target plate increases at first and then decreases. When the central angle of the convex curved target plate is 8°, the anti-penetration performance is the best. The peak load of the ceramic panel varies greatly with the change of the bending radian of the target plate, while the peak load of the UHMWPE backplane changes little.

Key words: special-shaped composite target plate, numerical simulation, bending radian, anti-penetration performance